buoyancyn.

英 'bɒɪənsɪ | 美 'bɔɪənsi

中文n. 浮力；轻快；轻松的心情；（股票）保持高价或回升

词根词源

buoyancy (n.)1713, from buoyant + -cy. Figurative sense (of spirits, etc.) is from 1819.

关键词

buoyancy